EP4086016A4 - Stainless steel pipe and method for manufacturing same - Google Patents
Stainless steel pipe and method for manufacturing same Download PDFInfo
- Publication number
- EP4086016A4 EP4086016A4 EP21759555.2A EP21759555A EP4086016A4 EP 4086016 A4 EP4086016 A4 EP 4086016A4 EP 21759555 A EP21759555 A EP 21759555A EP 4086016 A4 EP4086016 A4 EP 4086016A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- stainless steel
- steel pipe
- manufacturing same
- manufacturing
- same
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/007—Ferrous alloys, e.g. steel alloys containing silver
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/14—Recontouring
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Metal Extraction Processes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020031195 | 2020-02-27 | ||
PCT/JP2021/001884 WO2021171836A1 (en) | 2020-02-27 | 2021-01-20 | Stainless steel pipe and method for manufacturing same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4086016A1 EP4086016A1 (en) | 2022-11-09 |
EP4086016A4 true EP4086016A4 (en) | 2023-04-05 |
Family
ID=77490922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21759555.2A Pending EP4086016A4 (en) | 2020-02-27 | 2021-01-20 | Stainless steel pipe and method for manufacturing same |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230090536A1 (en) |
EP (1) | EP4086016A4 (en) |
JP (1) | JP6981573B1 (en) |
CN (2) | CN115151670A (en) |
BR (1) | BR112022016509A2 (en) |
MX (1) | MX2022010352A (en) |
WO (1) | WO2021171836A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024195730A1 (en) * | 2023-03-17 | 2024-09-26 | 日本製鉄株式会社 | Duplex stainless steel pipe |
JP7553883B1 (en) | 2023-03-17 | 2024-09-19 | 日本製鉄株式会社 | Duplex Stainless Steel Pipe |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001220652A (en) * | 2000-02-03 | 2001-08-14 | Sumitomo Metal Ind Ltd | Duplex stainless steel and method of manufacturing tube of the steel |
EP2177634A1 (en) * | 2007-07-20 | 2010-04-21 | Sumitomo Metal Industries, Ltd. | Process for production of duplex stainless steel tubes |
EP2853614A1 (en) * | 2012-08-31 | 2015-04-01 | Nippon Steel & Sumitomo Metal Corporation | Duplex stainless steel tube and method for producing same |
JP2017048424A (en) * | 2015-09-01 | 2017-03-09 | 新日鐵住金株式会社 | Oil well tube |
EP3150895A1 (en) * | 2014-05-30 | 2017-04-05 | Nippon Steel & Sumitomo Metal Corporation | Threaded steel-pipe fitting |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61210914A (en) | 1985-03-15 | 1986-09-19 | Shinko Denshi Kk | Composite scale |
SE514816C2 (en) * | 2000-03-02 | 2001-04-30 | Sandvik Ab | Duplex stainless steel |
CN101353769B (en) * | 2007-07-26 | 2011-10-05 | 傅丰仁 | Chromium 23 nickel 6 ferrite-austenitic stainless steel pipe and fabrication process thereof |
JP6946737B2 (en) * | 2017-05-18 | 2021-10-06 | 日本製鉄株式会社 | Duplex stainless steel and its manufacturing method |
US20220018007A1 (en) * | 2018-11-30 | 2022-01-20 | Jfe Steel Corporation | Duplex stainless steel seamless pipe and method for manufacturing same |
-
2021
- 2021-01-20 EP EP21759555.2A patent/EP4086016A4/en active Pending
- 2021-01-20 WO PCT/JP2021/001884 patent/WO2021171836A1/en unknown
- 2021-01-20 US US17/800,283 patent/US20230090536A1/en active Pending
- 2021-01-20 CN CN202180016167.5A patent/CN115151670A/en active Pending
- 2021-01-20 JP JP2021520624A patent/JP6981573B1/en active Active
- 2021-01-20 BR BR112022016509A patent/BR112022016509A2/en unknown
- 2021-01-20 MX MX2022010352A patent/MX2022010352A/en unknown
- 2021-01-20 CN CN202410375622.6A patent/CN118308666A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001220652A (en) * | 2000-02-03 | 2001-08-14 | Sumitomo Metal Ind Ltd | Duplex stainless steel and method of manufacturing tube of the steel |
EP2177634A1 (en) * | 2007-07-20 | 2010-04-21 | Sumitomo Metal Industries, Ltd. | Process for production of duplex stainless steel tubes |
EP2853614A1 (en) * | 2012-08-31 | 2015-04-01 | Nippon Steel & Sumitomo Metal Corporation | Duplex stainless steel tube and method for producing same |
EP3150895A1 (en) * | 2014-05-30 | 2017-04-05 | Nippon Steel & Sumitomo Metal Corporation | Threaded steel-pipe fitting |
JP2017048424A (en) * | 2015-09-01 | 2017-03-09 | 新日鐵住金株式会社 | Oil well tube |
Also Published As
Publication number | Publication date |
---|---|
EP4086016A1 (en) | 2022-11-09 |
US20230090536A1 (en) | 2023-03-23 |
BR112022016509A2 (en) | 2022-10-11 |
MX2022010352A (en) | 2022-09-21 |
CN115151670A (en) | 2022-10-04 |
CN118308666A (en) | 2024-07-09 |
JPWO2021171836A1 (en) | 2021-09-02 |
JP6981573B1 (en) | 2021-12-15 |
WO2021171836A1 (en) | 2021-09-02 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: B21D0003000000 Ipc: C21D0008100000 |
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A4 | Supplementary search report drawn up and despatched |
Effective date: 20230303 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: B21D 3/14 20060101ALN20230227BHEP Ipc: B21D 3/02 20060101ALN20230227BHEP Ipc: C22C 38/60 20060101ALI20230227BHEP Ipc: C22C 38/58 20060101ALI20230227BHEP Ipc: C22C 38/50 20060101ALI20230227BHEP Ipc: C22C 38/48 20060101ALI20230227BHEP Ipc: C22C 38/46 20060101ALI20230227BHEP Ipc: C22C 38/44 20060101ALI20230227BHEP Ipc: C22C 38/42 20060101ALI20230227BHEP Ipc: C22C 38/06 20060101ALI20230227BHEP Ipc: C22C 38/04 20060101ALI20230227BHEP Ipc: C22C 38/02 20060101ALI20230227BHEP Ipc: C22C 38/00 20060101ALI20230227BHEP Ipc: C21D 9/50 20060101ALI20230227BHEP Ipc: C21D 9/08 20060101ALI20230227BHEP Ipc: C21D 8/10 20060101AFI20230227BHEP |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |